| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.72 | 4.62 | 0.10 |
| Feb | 4.69 | 4.65 | 0.04 |
| Mar | 5.00 | 4.67 | 0.33 |
| Apr | 3.97 | 3.95 | 0.02 |
| May | 3.70 | 3.84 | -0.14 |
| Jun | 4.51 | 4.66 | -0.15 |
| Jul | 4.58 | 4.57 | 0.01 |
| Aug | 4.54 | 4.52 | 0.02 |
| Sep | 4.18 | 3.92 | 0.26 |
| Oct | 3.59 | 3.50 | 0.09 |
| Nov | 4.11 | 4.08 | 0.03 |
| Dec | 4.66 | 4.66 | 0.00 |
52.25 | 51.64 | 0.61 |